<?php
declare (strict_types = 1);

namespace app;

use think\App;
use think\Db;
use think\db\BaseQuery;
use think\exception\ValidateException;
use think\facade\Session;
use think\Validate;

/**
 * 控制器基础类
 */
abstract class BaseController
{
    /**
     * Request实例
     * @var \think\Request
     */
    protected $request;

    /**
     * 应用实例
     * @var \think\App
     */
    protected $app;

    /**
     * 是否批量验证
     * @var bool
     */
    protected $batchValidate = false;

    /**
     * 控制器中间件
     * @var array
     */
    protected $middleware = [];

    /**
     * 构造方法
     * @access public
     * @param  App  $app  应用对象
     */
    public function __construct(App $app)
    {
        $this->app     = $app;
        $this->request = $this->app->request;

        // 控制器初始化
        $this->initialize();
    }

    // 初始化
    protected function initialize()
    {}

    /**
     * 获取数据库链接实例
     * @param $table
     * @param bool $usePrefix
     * @return mixed
     */
	protected function M($table, bool $usePrefix=true):BaseQuery
    {
		return $this->app->db->table($usePrefix?env('database.prefix').$table:$table);
	}
    /**
     * 开启Mysql事务
     * @return void
     */
    protected function startTrans(){
        $this->app->db->startTrans();
    }

    /**
     * 事务回滚
     * @return void
     */
    protected function rollback(){
        $this->app->db->rollback();
    }

    /**
     * 事务提交
     * @return void
     */
    protected function commit(){
        $this->app->db->commit();
    }

	public function getUid($readAuth=false)
    {
		$uid = Session::get("uid");
		if(empty($uid)) {
            if($readAuth){
                $auth = '';
                if(array_key_exists('HTTP_AUTHORIZATION',$_SERVER)) $auth = $_SERVER['HTTP_AUTHORIZATION'];
                if(empty($auth)) return 0;
                $u = $this->M('user')->where('token',$auth)->field('id')->find();
                if(empty($u)) return 0;
                else return $u['id'];
            }else return 0;
        }else{
            //如果账号被封禁返回0
            $state = $this->M('user')->where(['id'=>$uid])->value('stat');
            if($state==0) return 0;
            return $uid;
        }
	}
    /**
     * 验证数据
     * @access protected
     * @param  array        $data     数据
     * @param  string|array $validate 验证器名或者验证规则数组
     * @param  array        $message  提示信息
     * @param  bool         $batch    是否批量验证
     * @return array|string|true
     * @throws ValidateException
     */
    protected function validate(array $data, $validate, array $message = [], bool $batch = false)
    {
        if (is_array($validate)) {
            $v = new Validate();
            $v->rule($validate);
        } else {
            if (strpos($validate, '.')) {
                // 支持场景
                [$validate, $scene] = explode('.', $validate);
            }
            $class = false !== strpos($validate, '\\') ? $validate : $this->app->parseClass('validate', $validate);
            $v     = new $class();
            if (!empty($scene)) {
                $v->scene($scene);
            }
        }

        $v->message($message);

        // 是否批量验证
        if ($batch || $this->batchValidate) {
            $v->batch(true);
        }

        return $v->failException(true)->check($data);
    }

}
